| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Australia | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Operating tables | |
| #2 | Clutches and brakes | |
| #3 | Hand carts | |
| #4 | Cycles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Watwood Brian M | 9 |
| #2 | Dejong Duane | 6 |
| #3 | Armstrong Errol C | 5 |
| #4 | Armstrong Errol | 3 |
| #5 | Dang Phuong V | 1 |
| #6 | Beals Dayn E | 1 |
| #7 | Wattwood Brian M | 1 |
| #8 | Ho Dat T | 1 |
| #9 | Bernucci Marcel T | 1 |
| #10 | Watwood Brian M Dejong Duane A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2017189251A1 | Foot operated mechanical steering system for a manual wheelchair | |
| BR0316195A | Wheelchair, wheelchair and wheelchair driving methods | |
| US6755430B1 | Wheelchair drive assembly | |
| US5263729A | Wheelchair driver and braking system |